Home / 10,358.80-15,538.20-3,785.20

Finding the Fourth Proportional to 10,358.80, 15,538.20 and 3,785.20

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Solution

The fourth proportional to 10,358.80, 15,538.20 and 3,785.20 is: 5,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,358.80 : 15,538.20 = 3,785.20 : x
  2. Step 2: Convert to fraction form
    10,358.80/15,538.20 = 3,785.20/x
  3. Step 3: Cross multiply
    10,358.80x = 15,538.20 × 3,785.20
  4. Step 4: Simplify right side
    10,358.80x = 58,815,194.64
  5. Step 5: Solve for x
    x = 58,815,194.64/10,358.80
  6. Step 6: Final answer
    x = 5,677.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.